Baling-press



2 Sheets-Sheet 1.

\No Mode1.`)

C. H. FIELD.

'BALING PRESS.

Patented Jan. 29, 1895.

2 sheets-sheet (No Model.)

C. H. FIELD. BALING PRESS.

-N0. 533,353. Patented Jan.- 29, 1895.

@Ntra TATES ATENT Ferca.

CHARLES HARMAN FIELD, OF DALTON, GEORGIA.

B'ALING-PRESS.

SPECIFICATIN forming part of Letters Patent No. 533,353, dated January29, 1895.

Application filed December 1, 1893. Serial No. 492,491- (No model.) A

To a/ZZ whom, t may con/cern:

Be it known that I, CHARLES HARMAN FIELD, a citizen of the UnitedStates, residing at Dalton, in the county of Whitfield and State ofGeorgia, have invented a new and useful Ealing-Press, of which thefollowing is a specification.

My invention relates to improvements in baling-presses, the objects inView being to produce a balingpress of simple construction and adaptedto be operated by horse, steam or other power; to provide a convenientmechanism for operating the plunger, which is so constructed as not toincrease the draft on the horse at the final portion of its stroke, butwhich will be steady, smooth, and even, and which will cause the plungerto move fast at the beginning of the stroke and gradually decrease itsspeed toward the'end of the stroke and at the latter time increase theleverage, whereby a greater amount of poweris yielded at the time thatthe packing of the bale takes place; and, furthermore, to absorb therebound of the plunger, preventing the shock to the machine as caused bythe rebo'und and gradually returning the plunger to its position forasubsequent stroke.

Other objects and advantages of the invention will appear in thefollowing description and the novel features thereof will beparticularly pointed out in the claims.

Referring to the drawings:'-Figure 1 is a perspective view of a pressembodying my invention. Fig. 2 is a sectional view through thebalingchamber, the power mechanism being shown in side elevation. Fig. 3is a transverse sectional view of the press in advance of thetucker-roll. Fig. 4: is a detail in perspective of the tucker-roll andits su pport. Fig. 5 is a detail in perspectiveof the powermechanism,the operating lever being removed and indicated by dotted lines.- Fig. 6is an inverted plan view of the lever. Fig. 7 is a horizontal sectionalView through the power-mechanism. Fig. 8 is a detail view of the'end ofthe plunger head. Fig.9 is a horizontal section on the line 9 9, Fig. 2.Fig. 10 is a detail View of one of the detents and yits supportingcasing.

Like numeralsof reference indicate like parts in all the figures of thedrawings.

The press chamber may be of any suitable construction, but is preferablyconstructed as follows; I employ transverse sills 1, from the two frontones of which there arise pairs of vertical standards 2, the same beingconnected by superimposed sills 3, through the ends of which and thesills l tiep-rodst are passed. A rear superimposed sill5 is arrangedover the rear sill l and tie-rods 6 pass through the ends of the sills 1and 5 as shown. Upon the sills l is supported the bottom 7 and theopposite side walls 8,and between the latter is located the roof 9,which is removed or cut away between the superimposed sills 3.

It will be obvious that inasmuch as the side walls are partially removedbetween the two arranged in these slots are opposite vertical series oftapering wedge lshaped detents. The fulcrum end of each detent 11 fispivoted in a U-shaped casing 57 and these casings together with thedetents are seated in the series of slots, the casings being maintainedin the slots by means of the metal strips 57 applied to the exterior ofthe chamber. If at any time a detent should break it would requiresimply a removal of the strip 517a to permit of its withdrawal. Verticalyokes 12 are applied to the outer surfaces of the sides 8,and coiledsprings 13 are interposed be tween the yokes and the free ends of theaforesaid detents, whereby they' are yieldingly pressed inward.

A pair of brackets 14 are secured to the upper side of the intermediatesuperimposed sill 3 and extend forward over the feed-opening in theupper side of the baling-chamber. A pivoted arm 15 is secured to therear side of the superimposed sill between the brackets 14a and extendsforward in line with the same. This arm 15 has its front end pivoted at15a to a pair of bearing-ears 17 formed on the upper side of atucker-bar 18 between whose upper side and the brackets 14 coiled IOOsprings 19 are interposed. The er-bar has its opposite ends providedwith forwardly extended bearing-ears 20, and journaled in said ears is atransversely disposed tuckerroll 21 whose axis projects beyond thebearing-ears and has its ends connected pivotally with a pair of arms orlevers 22 which have their front ends pivoted at 23 to the inner sidesof the side-Walls 8 of the baling-chamber such arms being located inrecesses formed in the side-Walls of said baling-chamber for theirreception. I thus produce a very efficient tucking device, which byreason of the presence of the roll facilitates the movements thereunderof the plunger in a manner that will be obvious, the roll and barserving their usual functions of tucking the material. The detents atthe sides of the chamber also serve their usual function and prevent awithdrawal of the material being baled by a retraction of the plunger.

24 designates the plunger head, which may be of any desiredconstruction, and has secured to its rear side a bracket casting 60 towhich is pivoted as at 25, the end of the plunger-beam 26, the samebeing normally withdrawn together with the head by means of a coiledspring 27 attached at one end to the plunger-beam and at the oppositeend to one of 4a pair of longitudinal beams or sills 28 which aresecured to the beams of the baling chamber in the usual manner. The'upper side of the plunger-head has a sheet metal plate or covering 24a,the front of which is inclined as at58 and provided with a transverselydisposed angular portion 72 to facilitate`the passage of the head underthe roll and prevent clogging of the hay at the roll, and which alsofacilitates the rebounding of the plunger. f

The outer ends of the beams or sills 28 are supported in cross-sills 29,and. arranged thereupon is a metal base-plate 30. This baseplate 30 issecurely bolted to the sills 28 and 29, and has formed upon its underside a transverse rib 30a which engages with a kerf in the sills 28 andrelieves the bolts from excessive strain, and also has formed upon itsupper side near its front end a vertical post 31 which forms one end ofa longitudinally disposed metal frame 32. rfhe post 31 is bored andreceives a stud 33 which passes centrally through a flanged opening 34formed at the center of acompoundly curved lever 35. This lever ispreferably provided upon its upper side with strengthening ribs 36 andmay be providedwith one or a number of compoundly curved cam-anges 37.The flanges are not regularly curvedbut at their outer ends are moreabrupt than at their inner ends as shown, and are each disposed inasimilar direction. Arranged upon the lever 35 is the sweep-arm 38 towhich the usual draft-appliances may be connected.

A socket 39 is fitted on the outer end ofthe plunger-beam 26, saidsocket being bifurcated at its extremity and having passed therethrougha vertical pin 40, the upper end of which projects above the socket andis provided With an anti-friction roller 41 arranged in the circularpath traversed by the camflanges as the lever 35 moves upon its pivot33. Between the branches of the bifurcations I pivot upon the bolt 40 alink 42, whose remaining end terminates ina transversely bored head 43located within the frame 32 and pivoted to the latter at one side of thepost 31 by a bolt 44. That end of the link 42 which is pivoted to theplunger is provided at one side with a curved wearing-shoe 46.

Securely bolted to the outer end of the frame 32 is a quadrant shapedarm 47, the same extending around to the opposite side of theplunger-beam and being supported by brackets 50 which rise from theouter sill 29 and the adjacent longitudinal sill 28. A curved springbuffer-plate 51 is secured to the outer end of this segment-shaped arm,is doubled upon itself at the inner side of the arm followingsubstantially the curvature thereof, and terminates short of theopposite end, where it is provided with an off-set 52 arranged oppositea threaded perforation 53 formed in said arm. An adj usting-screw 54passes through the perforation 53 and terminates at its front end inahead 55 between which and the o-set there is arranged a coiled spring56. The spring-plate is disposed eccentrically with relation to thepivot-bolt 44 of the link 42, and is in such position as to receive theimpact of the shoe 46 when the plunger-beam rebounds. In operation thehay or other material to be baled, is fed through the feed-opening inthe roof of the press into the path of the plunger-head and the teamstarted. The sweep 38 together With the lever 35 are revolved upon thepost 31 and the cam-anges on the under side of the lever 35 aresuccessively brought into contact with the anti-friction roller 41 atthe extreme end of the plungerbeam. By reason of the disposition orcurvature of each of these flanges, and the relative locations of thepoints of pivot of the lever 35 and link 42, the plunger-beam is movedrapidly at the beginning of its stroke and gradually, but with morepower, toward the end thereof, and actuates the plungerhead to carry thematerial back into the chamber in the usual manner. The limit ofmovement of the plunger-beam is of course in accordance with the lengthof the anges which are, as Will be obvious, successively brought intooperative position in connection with the end of the beam. As soon asthe anti-friction roller has traversed over one of the flanges and itreaches the end thereof, the lever 35 of course continuing its movementthe plunger-beam is released from the presence of the flange and theretracing spring 27 serves to return the plunger. The fulcruin point ofthe lever 35, which is its post 31, and the link 42, which is its post43 are eccentrically located with reference lOO IIO

to one another, both being in` line with the baling-chamber. The outerend 62 of the curved ange 37 iirst comes in contact with the roller 4land the latter is by the sweep of the lever carried toward the fulcrumof said lever. Of course, the nearer it approaches the post 3l thegreater the leverage which it will be seen occurs at the last part ofthe stroke. The sudden retraction of the plunger which is necessary inorder to return the same to a position for again operating, it isdesirable to absorb and thus prevent the shock of the impact of thesame. For this purpose I provide the buffer-mechanism which I havedescribed, and it will be seen that as the plunger returns the shoe 46will come in contact with the front end of the spring-plate, and itbeing set eccentrically with relation to the pivot point of the link andconsequently the center upon which the end of the plunger is moving willby reason .of the frictional contact between the shoe and the platecause the momentum to be gradually overcome and the rebound thusabsorbed. The spring-plate is but yieldingly supported in the path ofthe shoe and hence will yield so that the return of the plunger to itsnormal position is almost noiseless and practically but littleconcussion takes place.

Of course the number of cam-lianges of the lever 35 may be varied.` Ihave illustrated two, but one might be used, or any number,.

the lever being varied in shape to accommodate them in a manner thatwill be obvious.

From the foregoing description in connection with the accompanyingdrawings it will be seen that I have provided a very simple, strong anddurable press, whose plunger may be actuated a number of times to onecomplete circle traversed by the draft-animal; whose power is increasedby reason of the disposition of the curved flanges without increasingthe draft upon the horse, and at a time when it is necessary, namely, atthe end of the stroke of the plunger; and wherein the shock orconcussion caused bythe return of the plunger is practically andeifectually absorbed.

I do not limit my invention to the precise details of constructionherein shown and described, but hold that I may vary the same to anydegree and extent within the knowledge of the skilled mechanic.

Having described my invention, what I claim is l. In a baling-press, thecombination with a baling-chamber having a feed-opening upon its upperside, of a pair of brackets secured rigidly to the press and extendingforward over the opening, an arm pivoted at its rear end between thebrackets and projecting in line with the same, a tucker-bar arrangedtransversely over` the feed-opening below the free end of the arm andthe brackets and pivoted to the free end of said arm and provided at itsends with bearing-ears, springs interposed between the brackets and theends 2. In a baling-press, the combination ywith a baling-chamber havinga feed-opening in its upper side, of brackets extending forward over theopening, an arm pivoted to the chamber and extending forward between thebrackets, a tucker-bar arranged under the brackets and pivoted to thefree end of the arm, and coiled springs interposed between the upperside of the bar andthe under sides of the brackets and means to preventforward movement of the tucker-bar, substantially as specified. l

3. In a baling-press, the combination with a Daling-chamber, a plungerhaving a beam7 means for operating -the plunger in one direction, and aspring for returning the same, of a pivotal link connected at one end tothe plunger-beam and provided beyond its connection with said beam witha convexed shoe, and a buer-spring arranged in the path of the shoe onthe link and curved eccentrically with'relation to the pivotal point ofthe' latter, substantially as specified.

4. Ina balingpress, the combination with a baling-chamber, a plungerhaving a beam, means for operating the plunger in one direction, aspring for returning the same, and a pivotal link connected at one endto the plunger-beam and provided with a frictionshoe, of a curvedbuffer-spring arranged in the path of. the spring on said link anddisposed eccentrically with relation to the pivotal point of thelink,and means for varying the eccentricity of said spring, substantially asspecified.

5. In a baling-press, the combination with the baling-chamber, theplunger and its beam, a link pivoted to the outer end of the beam,

`a friction-shoe carried by the end of the link,

the opposite end of said link being pivoted to the iiXed part of themachine, of means for actuating the plunger in one direction, a springfor returning the same, a segmentalarm arranged upon the framework, acurved spring-buer plate secured at one end to the IOO ITO

arm and located at the inner side thereof in the path of the shoe andeccentrically with relation to the point of pivot of the link and meansfor varying the eccentricity of said spring buffer-plate, substantiallyas specied.

6. In a baling-press, the combination with the baling-chamber, theplunger and its beam, a link pivoted to the outer end of the beam, afriction-shoe carried by the end of the link, the opposite end of saidlink being pivoted to the fixed part of the machine, of means foractuating the plunger in one direction, a spring forlreturning the same,a segmental arm arranged upon the framework, a curved spring-bufferplate secured to the arm and located at the innerside thereof in thepath of the shoe and eccentrieally with relation to the point of pivotof the link, and a spring interposed between the free end of the plateand the arm, substantially as specified.

7. In a baling-press, the combination with the baling-chamber, theplunger and its beam, a link pivoted to the outer end of the beam, afriction-shoe carried by the end of the link, the opposite end of saidlink being pivoted to thexed part of the machine, of means for actuatingthe plunger `in one direction, a spring for returning the same, asegmental arm arranged upon the framework, a curved spring buffer-platesecured to the arm and located at the inner side thereof in the path ofthe shoe and ecceutrically with relation to Athe point of pivot of thelink, a set-screw threaded in a perforation in the arm, and acoiled-spring interposed between the end of the set-screw and the freeend of the plate, substantially as specified.

8. In a baling-press, the combination with the baling-chamber, theplunger-head, the beam, the return-spring, means for actuating theplunger-beam, a bifurcated socket arranged on the end of the beam, avertical pin arranged in the bifureated socket, a loose roller arrangedon the upper end of the pin, a link pivoted on the pin and having at itsouter end a friction-shoe and at its opposite end pivoted to the iixedpart of the frame Work, of a segmental arm supported on the frame, andembracing the end of the plunger, and a curved spring-plate secured tothe arm and located in the path of the friction shoe, and means foradjusting the plate, substantially as specified.

9. In a baling-press, the combination with a baling-chamber, a plungerand its beam, an anti-friction roll arranged at the rear end of theplunger beam, and a return spring connected to the beam, of alongitudinally disposed bracket 32 having a post 3l, a link 42 having ahead 43 mounted in the bracket in rear of said post and pivotallyconnected to the rear end of the plunger-beam, means for cushioning thebackward movement of the plunger beam and the movable end of the link,andan intermediatelypivoted lever 35 mounted upon the post 31, saidlever having opposite compoundly curved arms provided with dependingcompoundly curved flanges 37 adapted to engage successively with theantifriction roll carried by the plunger-beam, the outer portions ofsaid flanges being forwardly conveXed and the inner portions thereofbeing forwardly coneaved and terminating at intervals from the hub ofthe lever, whereby as the lever is turned continuously upon its fulcrumthe convexed portions of the [langes engage the anti-friction roll onthe plungerbeam and advance the latter until the link 42 draws the rearend o f the plunger beam inward or toward the fulcrum of the leversufficiently to cause said roll to pass between the concaved portions ofthe flanges and the hub of the lever, substantially as specified.

lO. In a baling-press, the combination with a baling-chamber provided atits opposite sides with horizontal slots, a plunger, and operatingconnections, of U-shaped casings arranged in said slots, cross-strips57l arranged across the outer sides of said casings, detents pivotallymounted in the casings and arranged in the slots in the walls of thebalingchamber, yokes 12, and springs 13 between the outer sides of thedetents and the yokes, substantially as specified.

In testimony that I claim the foregoingas my own I have hereto affixedmy signature in 8o the presence of two Witnesses.

CHARLES HARMAN FIELD.

Witnesses:

G. W. KIRTH, Jr., W. E. OsLIN.

